linux-kernel - [PATCH] perf Documentation: Correct branch stack sampling call-stack option

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Message-Id: <20251216013949.1557008-1-dapeng1.mi@linux.intel.com>
Date: Tue, 16 Dec 2025 09:39:49 +0800
From: Dapeng Mi <dapeng1.mi@...ux.intel.com>
To: Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Ian Rogers <irogers@...gle.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc: linux-perf-users@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Zide Chen <zide.chen@...el.com>,
	Falcon Thomas <thomas.falcon@...el.com>,
	Dapeng Mi <dapeng1.mi@...el.com>,
	Xudong Hao <xudong.hao@...el.com>,
	Dapeng Mi <dapeng1.mi@...ux.intel.com>,
	stable@...r.kernel.org
Subject: [PATCH] perf Documentation: Correct branch stack sampling call-stack option

The correct call-stack option for branch stack sampling should be "stack"
instead of "call_stack". Correct it.

$perf record -e instructions -j call_stack -- sleep 1
unknown branch filter call_stack, check man page

 Usage: perf record [<options>] [<command>]
    or: perf record [<options>] -- <command> [<options>]

    -j, --branch-filter <branch filter mask>
                          branch stack filter modes

Cc: stable@...r.kernel.org
Fixes: 955f6def5590 ("perf record: Add remaining branch filters: "no_cycles", "no_flags" & "hw_index"")
Signed-off-by: Dapeng Mi <dapeng1.mi@...ux.intel.com>
---
 tools/perf/Documentation/perf-record.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index e8b9aadbbfa5..3d19e77c9c53 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -454,7 +454,7 @@ following filters are defined:
 	- no_tx: only when the target is not in a hardware transaction
 	- abort_tx: only when the target is a hardware transaction abort
 	- cond: conditional branches
-	- call_stack: save call stack
+	- stack: save call stack
 	- no_flags: don't save branch flags e.g prediction, misprediction etc
 	- no_cycles: don't save branch cycles
 	- hw_index: save branch hardware index

base-commit: cb015814f8b6eebcbb8e46e111d108892c5e6821
-- 
2.34.1